Brick-kiln



(No Model.)

J. M. BAILEY.

BRICK KILN.

No. 430,724. Patented June 24, 1890.

INVENTOR 9 UNITED STATES PATENT O FICE.

JOHN M. BAILEY, OF GOODSON, VIRGINIA.

BRICK- KlLN.

SPECIFICATION forming part of Letters Patent No. 430,724, dated June 24, 1890.

Application filed October 24, 1889- To all whom it may concern.-

Be it known that 1, JOHN M. BAILEY, of Goodson, in the county of Washington and Commonwealth of Virginia, have invented certain new and useful Improvements in Kilns, of which the following description, in connection with the accompanying drawings, 1s a specification.

The object of the invention isto provide a downdraft-kiln of improved construction for burning bricks, pottery, &c., in which the bricks or other material shall be burned uniformly and thoroughly through out the entire mass, and in which the waste heat may be utilized for making steam for use in handling the clay, 8:0.

The invention consists in the construction hereinafter described and claimed.

In the drawings, wherein like letters of reference indicate like parts in the several figures, Figure 1 is a transverse sectional elevation of my improved kiln, and Fig. 2 is a right in Fig. 1, or liquid-fuel burners, as indicated at the left. Within the outer walls and at the base of the kiln are erected two intermediate Walls 0 C, which form the sides of the exit-flue D. Above these intermediate walls and resting upon them, and at their ends being supported in the outer Walls, are the transverse tubular floor-girders E E, which are coupled in series, as indicated, and support the perforated floor F of fire-clay, bricks, or other suitable material. At the outer edges of the floor and, it may be, supported by the girders stand the fire-walls G G, perforated as at g g. It will be seen that the floor extends beyond the planes of the intermediate walls and in such outer portions is perforated, as at ff, as well as in the middle portion over the line, as at f f. The walls G G stand at a sufficient distance from the walls A to form fines and combustion-chambers H H, which may be open at the top, and at the bottom are extended beneath the outer portions of the floor, as at H H'.. One end of the series of tubular girders is connected with a steam $e1'ia1 No. 327,973. (No model.)

drum or boiler K, and the other end with a water-supply L. The connection to the watersupply may be made through a series of Iongitudinal pipes M and drums N placed in the upper portion of the flue D. The water is thus admitted first to the coolest portion of the boiler thus formed. As the hot air and gases pass into the kiln, they are distributed by the walls G G. Portions pass by the tines H up over the top of the mass of bricks, &c., down through the same, and through the floor and into the exit-flue. Other portions pass through the fire-walls, and so through the bricks and floor into the exit-flue. Still other portions pass by the flues H H up through the perforations ff and then through the bricks and floor, thereby thoroughly burning the bricks, &c., in the outer lower portions of the mass, where, in kilns heretofore devised, many soft-burned bricks were to be found, no matter how thoroughly burned were the rest of the bricks. As the Waste heat passes down through the floor it comes in contact with the tubular girders and with the longitudinal pipes, thereby heating the water contained therein, and furnishing abundance of steam for use in handling the clay, 850., Without the expense of a separate boiler.

I claim- 1. In akiln, the combination of outer walls having firing-ports, a perforated floor, transverse tubular girders supporting said floor and connected with a steam-drum, intermediate Walls forming a fine, and longitudinal tubes connected with said transverse tubular girders, as and for the purpose described.

2. In a downdraft-kiln, the combination of outer walls having firing-ports, transverse tubular girders supported at their ends bysaid walls, a steam-drum connected with one end of the series of tubular girders, intermediate walls also supporting said girders and forming an exit-flue, longitudinal pipes in said flue connected at one end with the other end of said series of transverse girders, and a water-supply connected with the other end of said longitudinal pipes, as and for the purpose described.

JOHN M. BAILEY. Witnesses:

J. DANA J ONES, W. B. GREELEY. 

